CN107076289B - Limited-slip differential - Google Patents
Limited-slip differential Download PDFInfo
- Publication number
- CN107076289B CN107076289B CN201580043820.1A CN201580043820A CN107076289B CN 107076289 B CN107076289 B CN 107076289B CN 201580043820 A CN201580043820 A CN 201580043820A CN 107076289 B CN107076289 B CN 107076289B
- Authority
- CN
- China
- Prior art keywords
- lubricant
- hole
- disk
- bracket
- axle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000314 lubricant Substances 0.000 claims abstract description 174
- 239000008041 oiling agent Substances 0.000 claims abstract description 41
- 230000001154 acute effect Effects 0.000 claims description 7
- 238000005461 lubrication Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims 3
- 239000004605 External Lubricant Substances 0.000 abstract description 5
- 230000007246 mechanism Effects 0.000 description 33
- 239000002245 particle Substances 0.000 description 26
- 239000012530 fluid Substances 0.000 description 13
- 238000006467 substitution reaction Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000003491 array Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H48/00—Differential gearings
- F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
- F16H48/22—Arrangements for suppressing or influencing the differential action, e.g. locking devices using friction clutches or brakes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D13/00—Friction clutches
- F16D13/22—Friction clutches with axially-movable clutching members
- F16D13/38—Friction clutches with axially-movable clutching members with flat clutching surfaces, e.g. discs
- F16D13/52—Clutches with multiple lamellae ; Clutches in which three or more axially moveable members are fixed alternately to the shafts to be coupled and are pressed from one side towards an axially-located member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D13/00—Friction clutches
- F16D13/58—Details
- F16D13/60—Clutching elements
- F16D13/64—Clutch-plates; Clutch-lamellae
- F16D13/648—Clutch-plates; Clutch-lamellae for clutches with multiple lamellae
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D13/00—Friction clutches
- F16D13/58—Details
- F16D13/74—Features relating to lubrication
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D25/00—Fluid-actuated clutches
- F16D25/08—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member
- F16D25/082—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member the line of action of the fluid-actuated members co-inciding with the axis of rotation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D25/00—Fluid-actuated clutches
- F16D25/12—Details not specific to one of the before-mentioned types
- F16D25/123—Details not specific to one of the before-mentioned types in view of cooling and lubrication
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H48/00—Differential gearings
- F16H48/38—Constructional details
- F16H48/40—Constructional details characterised by features of the rotating cases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
- F16H57/043—Guidance of lubricant within rotary parts, e.g. axial channels or radial openings in shafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0457—Splash lubrication
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0467—Elements of gearings to be lubricated, cooled or heated
- F16H57/0473—Friction devices, e.g. clutches or brakes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/048—Type of gearings to be lubricated, cooled or heated
- F16H57/0482—Gearings with gears having orbital motion
- F16H57/0483—Axle or inter-axle differentials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2300/00—Special features for couplings or clutches
- F16D2300/02—Overheat protection, i.e. means for protection against overheating
- F16D2300/021—Cooling features not provided for in group F16D13/72 or F16D25/123, e.g. heat transfer details
- F16D2300/0214—Oil or fluid cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
The invention discloses a kind of limited-slip differentials for vehicle, comprising: bracket accommodates lubricant and can rotate around first axle；Pinion gear is arranged in bracket and can rotate around second axis；Side gear is arranged in bracket and engages with pinion gear；And clutch group, it is arranged in bracket and can rotate around first axle, clutch group includes capture disk and floating disc, capturing each of disk and floating disc has centre bore, neighboring area and at least one lubricant hole, capturing disk has close to the in-lubricant hole of respective central holes arrangement, with the external lubricant hole close to respective perimeter region, and floating disc has the central oiling agent hole being arranged between the inner hole and the exit orifice, to, floating disc causes lubricant by being gradually transferred in central oiling agent hole out of in-lubricant hole relative to the rotation of capture disk, and it advances in external lubricant hole from centre bore towards neighboring area.
Description
Technical field
The disclosure relates generally to limited-slip differentials, and more particularly to the locking limited-slip differential for vehicle.
Background technique
In order to enhance the cross-country run performance of four-wheel drive vehicle, installation " limit is slided " usually between two corresponding wheel shafts
Differential mechanism is to replace conventional open to the outside world differential mechanism.Limited-slip differential mechanically limits the opposite rotation of wheel shaft according to the deflection of restriction
Turn, to allow to reach scheduled wheel velocity difference.This is proved to when vehicle is in loose or uneven road conditions downlink
Be when sailing it is useful, under this condition, a wheel is not able to maintain road holding, such as contact ice, so as to cause frictional force reduction
And wheel spin.When this happens, if limiting cunning there are some frictions between the wheel and ground connected
Useful torque is transferred to opposite wheel shaft from the wheel shaft for being connected to idle running wheel by differential mechanism.This allows opposite wheels in problem road
Vehicle is grasped and promoted under the conditions of road.However, being turned to since limited-slip differential allows certain relative rotation of wheel shaft so existing
The case where torque is insufficient to allow opposite wheels to grasp and crosses problem road conditions, this may cause driver and loses to vehicle
Control.
In order to further enhance the cross-country run performance of four-wheel drive vehicle, usually installed between two corresponding wheel shafts
" locking " differential mechanism.Locking differential allows two axles operationally " to lock ", and effectively serves as single axis, thus anti-
Only the relative rotation of wheel shaft and eliminate wheel speed difference.This is in road conditions very relaxation and the unlikely holding road holding of wheel
When it is particularly useful.By preventing the relative rotation of wheel shaft, the significant increase of tractive force, so that vehicle be allowed to cross loose road travel permit
Part.
One of locking differential the disadvantage is that vehicle handling quality reduction.When operating locking differential, usually prove
It is difficult to make Vehicular turn, because turning usually requires a wheel and quickly rotates than another wheel, usually turn
Differential mechanism is deactivated before.However, if deactivating locking differential when crossing the turning of loose road conditions, it is meant that differential mechanism returns
Again to open to the outside world differential mechanism is shown as, then this may cause the significant reduction of tractive force and may cause driver and loses to vehicle
Control.
It will be useful that the combination of locking and limited-slip differential, which is provided, to provide optimum traction under all driving conditions.
One example of this differential mechanism is disclosed in United States Patent (USP) No.5,865,701.Disclosed locking limited-slip differential uses
" clutch group " comprising frictional disk stacks (it is typically found in limited-slip differential) with the opposite rotation for limiting wheel shaft pair
Turn or alternatively entirely prevent relative rotation.However, although the differential mechanism can fully work, but it is anticipated that
Differential mechanism also has the shortcomings that many.For example, since the mechanism for " locking " wheel shaft is conventional clutch group, and usually use
In locking four-wheel drive vehicle axletree torque value much higher than in limitation wheel shaft between sliding torque value (for locking
Fixed torque 1000Nm magnitude, and being used to limit sliding torque is about 100-200Nm), this may cause in clutch group
Significant bigger frictional force and thermal energy are generated, so as to cause bigger abrasion, and is likely to reduced the service life of differential mechanism.
It would thus be advantageous to provide a kind of locking limited-slip differential, it is less likely to be damaged during lock operation, thus than
The method of the prior art is more durable.Further it is provided that avoiding or improving any disadvantage existing in the prior art or provide existing skill
The solution of another alternative solution of art method it is useful.
Any discussion to document, movement, material, device, article etc. for including in this specification should not be because of it at this
Application each claim priority date before exist and be considered as recognizing any or all of formation in these things with
A part of common knowledge in disclosure related fields.
Summary of the invention
According to one aspect of the disclosure, a kind of limited-slip differential for vehicle is provided, comprising: bracket, at least
It is partially filled with lubricant and can be rotated around first axle；Pinion gear, be arranged in bracket and can around perpendicular to
The second axis rotation of first axle arrangement；Side gear is arranged in bracket and can rotate around first axle, side gear with
Pinion gear engagement；And clutch group, it is arranged in bracket and can be rotated around first axle, clutch group includes and bracket
The capture disk of engagement, and the floating disc that neighbouring capture disk is arranged and engaged with side gear；It captures each in disk and floating disc
It is a that there is central area, neighboring area and at least one lubricant hole limited for accommodating the lubricant of certain volume,
In, capturing one in disk and floating disc has the first face, and first face is limiting the first lubricant close to central area
Hole, and limit the second lubricant hole being radially spaced with the first lubricant hole and close to neighboring area；And it wherein, capturees
Another obtained in disk and floating disc has second face positioned opposite with the first face, and second face, which has, to be formed on
, phantom outline corresponding to the first lubricant hole and the second lubricant hole position, and limited between phantom outline
The central oiling agent hole that heart district domain is radially spaced, and wherein, arrange on the second surface, it is concentric with central area and
Intersect with the first tangent imaginary circle of central oiling agent hole with the first lubricant hole phantom outline, and with central oiling agent hole phase
The the second imaginary concentric circles for cutting arrangement intersects with the second lubricant hole phantom outline, and wherein, the disk relative to each other
During rotation, the rotation of central oiling agent hole is passed through and is partly overlapped the first lubricant hole, causes to be contained in the first lubricant hole
In the lubricant of certain volume be moved in central oiling agent hole, and the rotation of central oiling agent hole is passed through and is partly weighed
Folded second lubricant hole, causes the lubricant for the certain volume being contained in central oiling agent hole to be moved to the second lubricant hole
In, it gradually advances via each lubricant hole from central area towards neighboring area so as to cause lubricant.
According to another aspect of the present disclosure, a kind of limited-slip differential for vehicle is provided, comprising: bracket, at least
It is partially immersed in lubricant, and can be rotated in a first direction around first axle, bracket has along first axle
The side wall of extension and extend through at least one ingate therein, at least one described ingate has a center line, it is described in
Radius at an acute angle arrangement of the heart line relative to the crosspoint for extending to center line and side wall from first axle；Pinion gear is arranged in
It can rotate in bracket and around the second axis arranged perpendicular to first axle；Side gear is arranged in bracket and can enclose
It is rotated around first axle, side gear is engaged with pinion gear；And clutch group, it is arranged in bracket and first axle can be surrounded
Rotation；Wherein, bracket further includes at least one outlet opening, at least one described outlet opening is adjacent with the outer edge of clutch group
And extend between the region in region and bracket outer spaced away, wherein bracket causes to push along the rotation of first direction
Lubricant passes through at least one described ingate towards the first axle, and also result in lubricant by it is described at least one
It outlet opening and is discharged far from first axle.
According to the another aspect of the disclosure, a kind of limited-slip differential for vehicle is provided, comprising: bracket, at least
It is partially filled with lubricant and can be rotated around first axle；Pinion gear, be arranged in bracket and can around perpendicular to
The second axis rotation of first axle arrangement；Side gear is arranged in bracket and can rotate around first axle, side gear with
Pinion gear engagement；Clutch group is arranged in bracket and can rotate around first axle, and clutch group includes engaging with bracket
Capture disk, and the floating disc that neighbouring capture disk is arranged and engaged with side gear；And piston, it is arranged to and clutch group
It is adjacent and have be disposed against capture disk and floating disc in one front surface, front surface include be configured to comply with
(conform) deformable film of corresponding disk, piston can be axially moved along first axle to be pressed against clutch group, thus living
The operation of plug increases the pressure in piston, leads to front surface against clutch group and deforms deformable film, thus corresponding
Uniformly applied pressure on disk.
According to the another further aspect of the disclosure, a kind of limited-slip differential for vehicle is provided, comprising: bracket, at least
It is partially filled with lubricant and can be rotated around first axle；Pinion gear is arranged in bracket and can surround vertical
In the second axis rotation of first axle arrangement；Side gear is arranged in bracket and can rotate around first axle, side tooth
Wheel is engaged with pinion gear；Clutch group is arranged in bracket and can rotate around first axle, and clutch group includes multipair
Stratiform disk, each pair of stratiform disk include the capture stratiform disk engaged with bracket and neighbouring capture stratiform disk arrangement and and side gear
The floating stratiform disk of engagement.
There is disclosed herein other aspects.
Detailed description of the invention
The embodiment of the principle of the disclosure is only described by way of example with reference to the drawings, in the accompanying drawings:
Fig. 1 is the perspective cross-sectional view of limited-slip differential；
Fig. 2 is the viewgraph of cross-section of limited-slip differential shown in FIG. 1；
Fig. 3 A and 3B are the substitution perspective views of Fig. 1 and limited-slip differential shown in Fig. 2；
Fig. 3 C is the perspective view of clutch group；
Fig. 4-5C is the front view of clutch group shown in Fig. 3 C；
Fig. 6 A is the substitution perspective view of the limited-slip differential shown in figure of front；
Fig. 6 B is the perspective cross-sectional view of bracket；
Fig. 7 A is the substitution perspective view of the limited-slip differential shown in figure of front；
Fig. 7 B is the perspective cross-sectional view of the bracket of Fig. 6 B；
Fig. 8 A is the perspective view of some components of the limited-slip differential shown in figure of front；
Fig. 8 B is the perspective cross-sectional view of piston；And
Fig. 9 A-9C is the viewgraph of cross-section of the limited-slip differential with substitution clutch group shown in figure of front.
Specific embodiment
This disclosure relates to limited-slip differential, and more particularly to the locking limited-slip differential for motor vehicles.
It is related to the limited-slip differential for vehicle on one side, comprising: bracket is at least partially filled with lubricant simultaneously
And it can be rotated around first axle；Pinion gear is arranged in bracket and can surround the second axis arranged perpendicular to first axle
Line rotation；Side gear is arranged in bracket and can rotate around first axle, and side gear is engaged with pinion gear；And clutch
Device group is arranged in bracket and can rotate around first axle, and clutch group includes the capture disk engaged with bracket, Yi Jilin
The floating disc that nearly capture disk is arranged and engaged with side gear；Capturing each of disk and floating disc has centre bore, peripheral region
Domain and at least one lubricant hole, wherein capture disk has in-lubricant hole and neighbouring phase adjacent to corresponding centre bore arrangement
The external lubricant hole for the neighboring area answered, also, floating disc have be arranged in the in-lubricant hole and the external lubricant hole
Between central oiling agent hole.In this embodiment, floating disc causes lubricant by from Nei Run relative to the rotation of capture disk
It is gradually transferred in central oiling agent hole, arrives in external lubricant hole again in lubrication prescription hole and make lubricant from centre bore towards peripheral region
It advances in domain.
On the other hand it is related to the limited-slip differential for vehicle, comprising: bracket is at least partially submerged in lubricant
In and can rotate in a first direction around first axle, which has the side wall extended along first axle and extension
At least one ingate passed through, at least one described ingate have center line, and the center line is relative to from first
Axis extends to the radius arrangement at an acute angle in the crosspoint of center line and side wall；Pinion gear is arranged in bracket and can surround
Perpendicular to the second axis rotation of first axle arrangement；And side gear, it is arranged in bracket and can be revolved around first axle
Turn, side gear is engaged with pinion gear.In this embodiment, bracket causes lubricant to be pushed through institute along the rotation of first direction
At least one ingate is stated towards first axle.
Yet another aspect relates to the limited-slip differentials for vehicle, comprising: bracket is at least partially filled with lubricant simultaneously
And it can be rotated around first axle；Pinion gear is arranged in bracket and can surround the second axis arranged perpendicular to first axle
Line rotation；Side gear is arranged in bracket and can rotate around first axle, and side gear is engaged with pinion gear；Clutch group,
It is arranged in bracket and can be rotated around first axle, clutch group includes the capture disk engaged with bracket, and neighbouring prisoner
Obtain the floating disc that disk is arranged and engaged with side gear；And the piston of clutch-adjacent group arrangement, piston can be moved along first axle
It moves to be pressed against clutch group, and wherein, at least part of piston is deformable, to comply with the corresponding of clutch group
Contact surface.
Another further aspect is related to the limited-slip differential for vehicle, comprising: bracket is at least partially filled with lubricant simultaneously
And it can be rotated around first axle；Pinion gear is arranged in bracket and can surround the second axis arranged perpendicular to first axle
Line rotation；Side gear is arranged in bracket and can rotate around first axle, and side gear is engaged with pinion gear；Clutch group,
It is arranged in bracket and can be rotated around first axle, clutch group includes multipair stratiform disk, and each pair of stratiform disk includes and branch
The floating stratiform disk that the capture stratiform disk and neighbouring capture stratiform disk that bridge joint closes are arranged and engaged with side gear.
In general, disclosed limited-slip differential embodiment is intended to so that being rubbed during use by what is generated in differential mechanism
It wipes and the damage of the thermally-induced component to differential mechanism minimizes.This is realized by using each feature of differential mechanism, so that
Lubricant is set to flow continuously through differential mechanism during operation, thus the heat that dissipates, and potential destroy is removed out of differential mechanism
Property particle.This is because one or more of following effect: by the center of lubricant push-in differential mechanism to form positive pressure lubricating
Agent region is made lubricant leave the center of differential mechanism using centrifugal effect and generates negative pressure in the around the area of differential mechanism
Lubricant region, so that differential mechanism is discharged in lubricant.
In fig. 1 and 2, limited-slip differential 1 is shown in cross section.Differential mechanism 1 includes bracket 2, and bracket 2 has shell
3 and flange 4, which can rotate around common axis and be supported by two spring bearings 5 around it.Horizontal axis 6 substantially hangs down
The cavity in bracket 2 directly is extended through in common axis, horizontal axis 6 has two pinion gears 7 being rotatably connected to thereon.Two
A side gear 8 can be rotated around common axis and be engaged with pinion gear 7.Each side gear 8 has multiple splines extending therefrom
9, for being engaged with corresponding wheel shaft (not shown).Clutch group 10 be arranged to it is adjacent with one in side gear 8, and can be with
It rotates and can be slided along common axis around common axis.Clutch group 10 includes with multiple disks 11,12 to arrangement
Multiple frictional disks 11,12, every a pair of disk includes capture disk 11 and floating disc 12 adjacent to each other.Each capture disk 11 is via in disk
Multiple spline pins 16 at 11 periphery area are engaged with bracket 2, and each floating disc 12 is in the inner circumferential border region of disk 12
It is engaged with adjacent side gear 8.Piston 13 is arranged to adjacent with clutch group 10, and can slide along common axis.Pipe
14 are connected to the supply department of such as pressurized working fluid (not shown) of oil or air, and via seal casinghousing 15 and fluid road
Diameter 17 and piston 13 are in fluid communication.
In use, bracket 2 is mounted in the cavity in vehicle (not shown), and is covered with shell (not shown), from
And seal cavity.The cavity is at least partially filled with lubricant, such as oil, bracket 2 is at least partly immersed in lubrication
In agent.The neighboring area of rack shell 3 is connected to ring gear (not shown), the ring gear and is connected to by vehicle motor
The pinion gear (not shown) of the drive shaft (not shown) of driving engages.When ring gear is driven, bracket 2 surrounds common axis
Rotation again rotates side gear 8 and associated wheel shaft so that horizontal axis 6 and pinion gear 7 rotate.
In order to operate clutch group 10, pressurized working fluid reaches the rear surface of piston 13 by pipe 14 and fluid path,
Lead to the applied force in clutch group 10 of piston 13.This is pushed the disk 11,12 in dynamic clutch group 10 and compresses it together.
As clutch group 10 is gradually compressed, this gradually limits rotation of the capture disk 11 relative to floating disc 12, therefore limits
Rotation of the bracket 2 relative to side gear 8, until clutch group 10 is " locked ", thus the friction between disk 11,12, which overcomes, applies
The torque being added on disk 11,12, so that bracket 2 and two side gears 8 are with the rotation of identical speed.
" bias " of the compression of clutch group 10 and clutch 10 therefore depends on the work of the applied force on piston 13
Make the pressure of fluid.For example, bias can be set to 25%, 25% of frictional force needed for this will provide lock-up clutch 10.
This working fluid that will lead to relatively low pressure reaches piston 13 by fluid path, and influences between bracket 2 and side gear 8
Proportional low-level confined sliding.Alternatively, bias can be set as 100%, this will provide lock-up clutch 10
The 100% of required friction.This will lead to pressurized working fluid operation piston 13 and eliminates the cunning between bracket 2 and side gear 8
It is dynamic, to rotatably lock bracket 2 and side gear 8.
Fig. 3 A to 3C shows dismantling limited-slip differential 1 to approach clutch group 10.
Fig. 4 is the front view of clutch group 10, shows the capture disk 11 being covered on floating disc 12.Each disk 11,12
With the centre bore 20,21 for being suitable for receiving side gear 8.The centre bore 21 of floating disc 12 have multiple teeth 22, tooth 22 be suitable for from
The spline engagement that side gear 8 extends.Capturing disk 11 has neighboring area, which has multiple recess portions 23, and recess portion 23 is suitable
In receiving spline pin 16, spline pin 16 will be captured disk 11 and be engaged with bracket 2.Although should be appreciated that using spline pin 16, branch
Frame 2 can have whole spline (not shown), and captures disk 11 and be suitable for directly engaging with whole spline.
Capturing disk 11 and floating disc 12 has multiple lubricant holes 24,25 across its arrangement.Lubricant hole 24,25 is usual
Multiple annular arrays are arranged to, at least partly around corresponding centre bore 20,21, and in the preceding table of each disk 11,12
Face is radially spaced.Alternatively, (not shown) is arranged along from the outwardly extending helix of corresponding centre bore in hole 24,25.
Hole 24,25 is arranged so that when disk 11,12 rotates relative to each other, across each hole of a disk 11,12 24,25 will with wear
The one or more holes 24,25 for crossing another disk 11,12 are overlapped.In general, hole 24,25 is arranged so that the edge in each hole 24,25
On point be dimensioned to center relative to the center of respective disc 11,12 at a distance of a distance, which, which is less than or equal to, leads to
Cross the distance of the point on the edge in another hole of same disk 11,12.This means that hole 24,25 is present in each of disk 11,12 half
At diameter size, so that it is guaranteed that there is the continuous path in the hole 24,25 by each disk 11,12.Although hole 24,25 is shown as extending
Pass through each disk, but it is to be understood that hole 24,25 can extend only partially through each disk (blind hole).Using blind hole
In the case of, capture disk 11 is arranged to make wherein surface of the surface with blind hole towards the floating disc wherein with blind hole.
When clutch group 10 submerges in the lubricant, lubricant hole 24,25 is used as reservoir, to accommodate certain volume
Lubricant.In addition, generally producing particle during the use of differential mechanism 1 and suspending in the lubricant, which can be in clutch
The surface of accumulation and wear disc 11,12 in device group 10.Therefore, the particle of suspension is also trapped in hole 24,25.
During the operation of differential mechanism 1, differential mechanism 1, which rotates, simultaneously generates centrifugal force, centrifugal force force be contained in each hole 24,
Lubricant and particle in 25 is radially outward far from common axis.In addition, this leads to disk 11,12 when wheel speed has differences
It rotates relative to each other.When disk 11,12 rotates, hole 24,25 each other by, and centrifugal force by lubricant and particle from capture
The first hole 24 in disk 11 removes and in the second hole 25 for being moved radially outward in floating disc 12, and the second hole 25 is arranged to compare
First hole 24 is farther away from common axis.During the operation of differential mechanism 1, between the through-hole 24,25 in alternate disk 11,12
The process of mobile lubricant and particle repeats, so that lubricant and particle are gradually removed common axis, until lubricant and
Outer edge discharge of the particle from two disks 11,12.In addition, the shear action (shear) of the oil at each hole 24,25 also assures
Lubricant film is evenly distributed on the surface of each disk 11,12.
Lubricant and particle is set to only relate to three lubricant holes 24,25 far from the cyclic process at the center of disk 11,12,
It is: the inner hole 24,25 being arranged near one corresponding centre bore 20,21 in capture disk 11 or floating disc 12；Arrangement
Exit orifice 24 in the neighboring area of same disk 11,12；And be arranged in it is between inner hole 24 and exit orifice 24, adjacent disk 11,
Interstitial hole 25 on 12.
For example, capture disk 11 has inner hole 24 and exit orifice 24, and floating disc 12 has interstitial hole 25.When 12 phase of floating disc
When being rotated for capture disk 11, lubricant and particle in inner hole 24 by the centrifugal force that differential mechanism 1 generates force and radially outward.
When interstitial hole 25 is aligned and at least partly overlaps with inner hole 24, lubricant and particle are radially outward passed from capture disk 11
It is delivered to floating disc 12, and is entered in the space provided by interstitial hole 24.Since floating disc 12 continues to rotate, lubricant and particle are logical
Centrifugal force is crossed to be forced to again radially outward.When exit orifice 24 is aligned and is at least partly overlapped with interstitial hole 25, lubricant
It is radially outward transmitted to capture disk 11 from floating disc 12 again with particle and enters in the space provided by exit orifice 24.Although above-mentioned
Example only relates to three holes 24,25 it should be appreciated that the process can be related to any amount of hole 24,25, as long as phase
Hole 24,25 on adjacent disk 11,12 is arranged such that the hole is at least one during disk 11,12 rotates relative to each other
It is partly overlapped at point, and therefore lubricant can pass through between disk 11,12 and be gradually distance from the center of disk 11,12.
It is useful process by " centrifugal effect " that the arrangement in hole 24,25 generates, because this causes particularly from clutch
A possibility that group 10 removes particle, and it reduce damage frictional disk 11,12.This also regularly makes lubricant cycle through clutch
Device group 10 to keep the best lubrication on the surface of disk 11,12, and radiates from clutch group 10.Further, since disk 11,12
Best lubrication, reduce or eliminates undesirable " stick-slip (stick-up) " or " LSD shake " characteristic, thus provides clutch
10 smoother engagement simultaneously reduces the noise generated by clutch 10.
Fig. 5 A and 5B are the preceding viewgraph of cross-section of clutch group 10, and the disk 11,12 for showing two-stage rotates relative to each other,
Wherein, floating disc 12 is shown as transparent.Floating disc 12 is shown as rotating clockwise relative to the capture disk 12 being kept fixed.
Two groups of lubricant holes 241,251,242,252 are shown as each other by make lubricant and particle radially remote from center
Hole 20,21.
In fig. 5, the rotation of floating disc 12 has made the first hole 251 across floating disc 11 and has passed through the of capture disk 12
Two holes 241 alignment, so that the first hole 251 is Chong Die with the second hole 241.As described above, forcing packet by the centrifugal force that differential mechanism 1 generates
The lubricant and particle being contained in the first hole 251 are radially away from common axis.When disk 11,12 rotates relative to each other, hole
251,241 pass through, and centrifugal force makes lubricant and particle remove the first hole 251 and enters in the second hole 241, such as arrow institute
Show.In this way, lubricant and particle are transmitted to from floating disc 12 captures disk 11 and far from common axis.
In figure 5B, the rotation of floating disc 12 has made across the third hole 242 of capture disk 12 and across floating disc 12
4th hole 252 alignment, so that hole 242,252 is overlapped.Again, when hole 242,252 each other by when, centrifugal force make lubricant and
Grain removes third hole 242 and enters in the 4th hole 252, as shown by arrows.This makes lubricant and particle with movement shown in Fig. 5 A
Substitution move movement, wherein lubricant and particle are transmitted to floating disc 12 from capture disk 11, and also far from common axis.
When disk 11,12 rotates relative to each other, pass through the hole 24,25 to cooperate on the width across two disks 11,12
Step shown in Fig. 5 A and 5B is repeated, so that lubricant and particle be made to leave common axis, until it is from the outer of two disks 11,12
Edge discharge.
Fig. 5 C is the preceding detailed view for showing the capture disk 11 of the arrangement of hole 24.Hole 24 is arranged in 13 annular regions 26
One in, formed 13 corresponding annular arrays.The radial spacing of annular region 26 can be several adjacent by extending across
The arc 27 of array determines that the crosspoint of each arc 27 and each annular region 26 limits the position in hole 24, therefore each arc 27 limits
The arrangement in fixed one group of hole 24.These groups around the regular section of disk 11 to repeat, to form duplicate pattern.
The geometry of arc 27 determines by the expected frequency that the hole 24,25 of adjacent disc 11,12 is overlapped, the angle of arc 27 and
The radial spacing in Curvature Effect hole 24 and the quantity in hole 24.The also shape on the direction of the direction of travel relative to disk 11,12 of arc 27
At.At least one arc 271, which is arranged to, to extend radially outwardly simultaneously far from the first direction of travel, to form the group in hole 24, gradually
Extend radially outwardly the center far from disk 11 and the easy curve across arc 271.Similarly, at least one arc 272 is arranged to diameter
To extending outwardly and away from the second direction of travel.Each arc 27 has interior point 273 and an exterior point 274, interior point 273 be arranged in center
First annular region 26 near hole 20 is intersected, exterior point 274 and 26 phase of the second annular region distad arranged from centre bore 20
It hands over, and it also intersects with other several annular regions 26 between the first and second regions 26.When disk 11,12 is relative to that
When this rotation, this arrangement facilitates lubricant and particle and is transmitted to another hole 25 from a hole 24.Although disk 11 is shown
With 13 annular arrays, but it is to be understood that this is only example, and disk 11 can have more or fewer battle arrays
Column, this depends on the requirement of clutch group 10.
Hole 24 is generally arranged to so that each hole 24 and the imaginary circle phase with the center arranged concentric of disk (or centre bore 20)
It cuts, and imaginary concentric circles is overlapped at least one point on another hole 24.For example, hole 243 and imaginary concentric circles 28
It is tangent, also it is overlapped with two points on each hole 244.This size relationship between hole 243,244 ensures the table in disk 11
Continuous annular web is not present on face.When disk 11 rotates, the geometry in hole 24 across disk 11 thereby, it is ensured that provide continuously
Path, so that lubricant is advanced through.Though it is shown that capture disk 11, it is to be understood that, floating disc 12 has similar or identical
Hole 25 arrange, and therefore provide identical effect.
Fig. 6 A is the perspective view of limited-slip differential 1, and Fig. 6 B is identical view, it illustrates isolation and is had transversal
The bracket 2 in face.Bracket 2 has the side wall 30 extended along common axis.At least one ingate 31 is with the appearance with side wall 30
Face angularly extends through side wall 30.The center line of each ingate 31 in common axis and center line and side wall
The radius extended between intersection point forms acute angle.Ingate 31 substantially can tangentially extend with outer surface 30.Alternatively, such as
Shown in Fig. 6 A, hole 31 substantially tangentially extends with the inner surface of side wall 30.
When vehicle is advanced forward, bracket 2 rotates in the clockwise direction around common axis.Ingate 31 be arranged to
The direction of rotation of bracket 2 forms acute angle, and thus the side wall in hole 31 forms sharp edges, and when bracket 2 rotates, which will lubricate
Agent is pushed into each hole 31.Motive force is centrally formed positive pressure, enrichment lubricant region bracket 2.The normal pressure forces
Outward from the center of bracket 2 towards clutch group 10, due to above-mentioned centrifugal effect, lubricant is drawn through clutch to lubricant
Group 10.By the lubricant hole 24,25 of clutch group 10 and the combination of ingate 31 to keep lubricant to pass through differential mechanism
Constant flow, thus further auxiliary heat dissipation and removal particle.
Fig. 7 A is the substitution perspective view of limited-slip differential 1, and bracket flange 4 is shown as transparent, and it is convex that Fig. 7 B shows bracket
The cross section of edge 4.In order to which further auxiliary lubricant flows through differential mechanism 1, flange 4 has at least one outlet opening 32, the outlet
Hole extends to the region outside bracket 2 from the position near the outer edge of clutch group 10.Since bracket 2 rotates, this is each
The entrance in hole 32 generates negative pressure region, so that lubricant and particle be promoted to flow through outlet opening 32 simultaneously from clutch group 10
The region for surrounding bracket 2 is reached, can accumulate particle in this region, and for example by multiple magnet (not shown) from lubrication
Particle is removed in agent.Outlet opening 32 usually surrounds at least one radial arrays of common axis, and can be substantially vertical
Extend in common axis.In addition, by hole 32 be designed and sized to relatively small help to create negative pressure region.Although in Fig. 7 A and
The single array of outlet opening 32 is shown in 7B, but it is to be understood that can provide other array to increase can flow through it
In lubricant volume.
Fig. 8 A is the perspective view of a part of differential mechanism 1.Piston 13 is arranged in 2 (not shown) of bracket against clutch group 10
In complementation it is indoor.When pressurized fluid flows through pipe 14, seal casinghousing 15 and fluid path, fluid is pressed against the rear surface of piston 13
40, and push piston 13 against clutch group 10, to operate clutch 10.At least front surface 40 of piston 13 is deformable
, to comply with the defects of the surface of frictional disk 11,12 or the variation of the contact of piston 13, to be used as diaphragm or capsule, with cross
Uniformly applied force across disk 11,12.Although this defect may be in micron dimension, however, it is important that piston 13 exists
It is deformed on any defect, to avoid the region high-tensile strength (high force) for generating part, which will disperse lubricant
And the abrasion on disk 11,12 can be can increase.In view of needing to apply the high torque to " locking " clutch 10, usually exist
The magnitude of 1000s Nm, this is especially important.Piston 13 is shown as the single annular piston 13 around common axis, however
It should be appreciated that piston 13 is configurable to only partially about the axis, or it is configurable to around the multiple smaller of axis
Piston (not shown), commonly known as " multiple tank (multi-pot) " caliper arrangement.
Fig. 8 B shows the viewgraph of cross-section of piston 13, shows the U-shaped cross-section 41 of piston 13.Piston 13 is usually by non-
Often thin flexible material (such as sheet metal) formation.When being activated by working fluid, U-shaped part makes the outer edge 42 of piston 13
The relevant sealing element in complementary chamber being pressed against in bracket 2 is allowed simultaneously with enhancing the sealing between piston 13 and bracket 2
Rear surface 40 (and opposite front surface) deforms in any surface defect in disk 11,12.Alternatively, piston 13 has extremely
Less around the integral seal (not shown) of its periphery edge arrangement.
Fig. 9 A-9C is the viewgraph of cross-section of differential mechanism 1, and differential mechanism 1 has the substitution clutch group 100 being arranged therein.
Fig. 9 B and 9C are the detailed views of clutch group 100.Substitution clutch group 100 include arranged in a manner of alternate pair it is multiple
Frictional disk 111,121, wherein each to including the capture disk 111 engaged with bracket 2 and the floating disc engaged with side gear 8
121.In order to handle a large amount of torque values by clutch group 100, there is than in conventional slide limiting differential clutch group obtain more
Pair of more disks 111,121.For example, normal clutch usually have 10 it is right, and clutch group 100 include 20 to or more
Pair disk 111,121, and may include 30 to or more pair.In addition, each disk 111,121 is stratiform disk, therefore compare
Conventional limited-slip differential frictional disk much thinner.For example, conventional frictional disk is typically about 1.5mm thickness, and the stratiform disk 111,
121 about 0.2-0.5mm are thick.
Obviously, spirit according to the present invention can make apparent variation or modification, and it is intended as the one of the disclosure
Part, and therefore any such apparent variation or modify all within the scope of the present invention.
Throughout the specification, word " comprising " will be understood as implying to include the discrete component, entirety, step or more
A element, entirety, the group of step, but it is not excluded for any other discrete component, entirety, step or multiple element, entirety, step
Group.
Claims (27)
1. a kind of limited-slip differential for vehicle, comprising:
Bracket is configured to accommodate lubricant and can rotate around first axle；
Pinion gear is arranged in bracket and can rotate around the second axis arranged perpendicular to first axle；
Side gear is arranged in bracket and can rotate around first axle, and side gear is engaged with pinion gear；And
Clutch group is arranged in bracket and can rotate around first axle, which includes engaging with bracket
Capture disk, and the floating disc arranged and engaged with side gear close to capture disk；
Capturing each of disk and floating disc has central area, neighboring area, and limits at least one lubricant hole, often
A lubricant hole is configured to accommodate the lubricant of certain volume,
Wherein, capturing one in disk and floating disc has the first face, and limits the first lubricant hole close to central area,
And the second lubricant hole being radially spaced with the first lubricant hole and close to neighboring area is limited, and
Wherein, another captured in disk and floating disc has second face positioned opposite with the first face, and second face has
Two phantom outlines projected on, two phantom outlines and first lubricant hole and second lubricant hole pair
It answers, and the second face limits the central oiling agent hole being radially spaced with central area between phantom outline, and
Wherein, arrange on the second surface and first imaginary circle concentric with central area and central oiling agent hole phase
Cut, and intersect with the phantom outline of the first lubricant hole, and arrange on the second surface and it is concentric with central area
Second imaginary circle and central oiling agent hole tangentially, and are intersected with the phantom outline of the second lubricant hole, and
Wherein, in use, bracket at least partly fills lubricant, and the capture disk and floating disc revolve relative to each other
Turn, so that the rotation of central oiling agent hole is passed through and is partly overlapped the first lubricant hole, causes to be contained in the first lubricant hole
Lubricant be moved in central oiling agent hole, also, central oiling agent hole rotation by and be partly overlapped the second lubricant
Hole causes the lubricant being contained in central oiling agent hole to be moved in the second lubricant hole, so as to cause lubricant via every
A lubricant hole is gradually advanced from central area towards neighboring area.
2. limited-slip differential according to claim 1, wherein the first face further defines third lubricant hole, the third profit
Lubrication prescription hole is radially spaced close to neighboring area, and with the second lubricant hole, and
Second face has in phantom outline projecting on and corresponding with third lubricant hole, wherein the second face is second
Restriction is radially spaced another with central area between the phantom outline of lubricant hole and the phantom outline of third lubricant hole
Central oiling agent hole, and
Wherein, arrangement on the second surface and with the concentric third imaginary circle in central area and another central oiling agent hole phase
It cuts and intersects with the phantom outline of the second lubricant hole, and arrange on the second surface and the concentric with central area the 4th
Imaginary circle and another central oiling agent hole are tangent, and intersect with the phantom outline of third lubricant hole, and
Wherein, in use, the capture disk and floating disc rotate relative to each other, so that another central oiling agent Kong Xuan
Turn by and be partly overlapped the second central oiling agent hole, causes the lubricant being contained in the second lubricant hole to be moved to described
In another central oiling agent hole, and another central oiling agent hole rotation is passed through and is partly overlapped third lubricant
Hole causes the lubricant being contained in another central oiling agent hole to be moved in third lubricant hole.
3. limited-slip differential according to claim 1 or 2, wherein capture each of disk and floating disc limit radial
Multiple lubricant holes spaced apart, so that each lubricant hole revolves relative to each other in the capture disk and floating disc in use
At least two lubricant holes when turning in the disk adjacent with being limited to partly overlap.
4. limited-slip differential according to claim 3, wherein be arranged in it is on one in the first face and the second face and
Concentric another imaginary any of concentric circles and lubricant hole defined therein are tangent with first axle, and at this
At least one point on another lubricant hole on face is overlapped.
5. limited-slip differential according to claim 1 or 2, wherein clutch group further has multiple first lubricants
Hole, multiple second lubricant holes and multiple central oiling agent hole, each of the multiple lubricant hole is with annular array
Arrangement.
6. limited-slip differential according to claim 5, wherein each annular array is at least partly around corresponding center
Region.
7. limited-slip differential according to claim 3, wherein each lubricant hole is along radially away from corresponding center
The helix arrangement that domain extends.
8. limited-slip differential according to claim 3, wherein at least some of described lubricant hole cloth relative to each other
It sets in a group, and wherein, multiple similar groups are limited around corresponding central area with duplicate pattern.
9. limited-slip differential according to claim 8, wherein each group includes along relative to corresponding central area diameter
The multiple holes arranged to outwardly extending arc.
10. limited-slip differential according to claim 9, wherein clutch group is configured in use in a first direction
Rotation, and wherein, the arc is arranged to extend far from first direction.
11. limited-slip differential according to claim 1 or 2, wherein each lubricant hole extends through respective disk.
12. limited-slip differential according to claim 1 or 2, wherein the bracket further include:
The side wall extended along first axle has at least one ingate therein, at least one described ingate is extended through
Own centre line, radius at an acute angle cloth of the center line relative to the crosspoint for extending to center line and side wall from first axle
It sets；And
At least one outlet opening, outer edge and spaced away region of at least one the described outlet opening in clutch-adjacent group
Extend between the region of bracket outer,
Wherein, bracket leads to that lubricant is pushed to pass through at least one described entrance towards first axle along the rotation of first direction
Hole, and also result in lubricant and pass through at least one described outlet opening and be discharged far from first axle.
13. limited-slip differential according to claim 1 or 2 further includes piston, be arranged to it is adjacent with clutch group, and
And there is one front surface being disposed against in capture disk and floating disc, which includes being configured to comply with corresponding disk
Deformable film, the piston can be axially moved along first axle to be pressed against clutch group, so that the operation of piston increases
Pressure in piston leads to front surface against clutch group and deforms the deformable film, thus equal across corresponding disk
Apply pressure evenly.
14. a kind of limited-slip differential for vehicle, comprising:
Bracket can rotate in a first direction around first axle, and bracket has the side wall extended along first axle and prolongs
Extend through at least one ingate therein, at least one described ingate has a center line, and the center line is relative to from the
One axis extends to the radius arrangement at an acute angle in the crosspoint of center line and side wall；
Pinion gear is arranged in bracket and can rotate around the second axis arranged perpendicular to first axle；
Side gear is arranged in bracket and can rotate around first axle, and side gear is engaged with pinion gear；And
Clutch group, is arranged in bracket, and can rotate around first axle；
Wherein, bracket further includes at least one outlet opening, at least one described outlet opening clutch-adjacent group outer edge simultaneously
Extend between the region in region and bracket outer spaced away；
Wherein, in use, bracket at least partly infiltrates in the lubricant, and along the rotation of first direction, to cause to push away
Dynamic lubricant passes through at least one described ingate towards first axle, and lubricant is caused to pass through at least one described outlet
Hole and separate first axle discharge.
15. limited-slip differential according to claim 14, wherein at least one described outlet opening is substantially perpendicular to first
Axis arrangement.
16. limited-slip differential according to claim 14 or 15, wherein bracket includes around first axle with annular array
Multiple ingates of arrangement.
17. limited-slip differential according to claim 14 or 15, wherein interior table of at least one the described ingate from side wall
Face extends substantially tangentially.
18. limited-slip differential according to claim 14 or 15, wherein bracket includes around first axle with annular array
Multiple outlet openings of arrangement.
19. limited-slip differential according to claim 14 or 15, wherein clutch group further includes the capture engaged with bracket
Disk, and the floating disc that neighbouring capture disk is arranged and engaged with side gear, capture each of disk and floating disc have center
Region, neighboring area, and at least one lubricant hole is limited, each lubricant hole is used to accommodate some lubricants,
Wherein, capturing one in disk and floating disc has the first face, and first face is limiting first close to central area
Lubricant hole, and the second lubricant hole being radially spaced with the first lubricant hole and close to neighboring area is limited, and
Wherein, another captured in disk and floating disc has second face positioned opposite with the first face, and second face has
Two phantom outlines projected on, two phantom outlines are corresponding with the first lubricant hole and the second lubricant hole, and
Second face limits the central oiling agent hole being radially spaced with central area between the phantom outline, and
Wherein, arrange on the second surface and it is tangent with the first concentric imaginary circle of central area and central oiling agent hole, and
And intersect with the phantom outline of the first lubricant hole, and arrange on the second surface and with concentric second imaginary in central area
Round and central oiling agent hole, and intersect with the phantom outline of the second lubricant hole, and
Wherein, in use, the capture disk and floating disc rotate relative to each other, so that central oiling agent hole rotation warp
The first lubricant hole is crossed and be partly overlapped, the lubricant being contained in the first lubricant hole is caused to be moved to central oiling agent hole
In, and the rotation of central oiling agent hole is passed through and is partly overlapped the second lubricant hole, causes to be contained in central oiling agent hole
In lubricant be moved in the second lubricant hole, so as to cause lubricant via each of described lubricant hole from center
It gradually advances towards neighboring area in domain.
20. limited-slip differential according to claim 19 further includes piston, it is arranged to adjacent with clutch group and has
Have one front surface being disposed against in capture disk and floating disc, the front surface include be configured to comply with corresponding disk can
Deformation film, piston can be axially moved along first axle to be pressed against clutch group, so that the operation of piston increases in piston
Pressure leads to front surface against clutch group and deforms deformable film, thus the uniformly applied pressure on corresponding disk.
21. a kind of limited-slip differential for vehicle, comprising:
Bracket is configured to accommodate lubricant and can rotate around first axle；
Pinion gear is arranged in bracket and can rotate around the second axis arranged perpendicular to first axle；
Side gear is arranged in bracket and can rotate around first axle, and side gear is engaged with pinion gear；
Clutch group is arranged in bracket and can rotate around first axle, and clutch group includes the prisoner engaged with bracket
Obtain disk, and the floating disc that neighbouring capture disk is arranged and engaged with side gear；And
Piston, be arranged to it is adjacent with clutch group, and have front surface, the front surface include be arranged as abutting and meet
One deformable film in disk and floating disc is captured, piston can be axially moved along first axle to be pressed against clutch group,
To which the operation of piston increases the pressure in piston, leads to front surface against clutch group and deform deformable film, from
And the uniformly applied pressure on adjacent disk.
22. limited-slip differential according to claim 21, wherein the piston is to be arranged at least partly around first
The annular piston of axis.
23. the limited-slip differential according to claim 21 or 22, wherein the piston has U-shaped cross-section.
24. the limited-slip differential according to claim 21 or 22, wherein the piston includes at least about its neighboring area
The integral sealing part of arrangement.
25. the limited-slip differential according to claim 21 or 22, wherein the piston is formed by flexible material.
26. the limited-slip differential according to claim 21 or 22, wherein during capture each of disk and floating disc have
Heart district domain, neighboring area, and at least one lubricant hole is limited, each lubricant hole is configured to accommodate some lubricants,
Wherein, capturing one in disk and floating disc has the first face, and first face is limiting first close to central area
Lubricant hole, and the second lubricant hole being radially spaced with the first lubricant hole and close to neighboring area is limited, and
Wherein, another captured in disk and floating disc has second face positioned opposite with the first face, and second face has
In two phantom outlines projected on, corresponding first lubricant hole of two phantom outlines and the second lubricant hole, and
Second face limits the central oiling agent hole being radially spaced with central area between the phantom outline, and
Wherein, arrange on the second surface and it is tangent with the first concentric imaginary circle of central area and central oiling agent hole, and
And intersect with the phantom outline of the first lubricant hole, and arrange on the second surface and with central area it is concentric second together
Heart circle is tangent with central oiling agent hole, and intersects with the phantom outline of the second lubricant hole, and
Wherein, in use, bracket at least partly infiltrates in the lubricant, and fills lubricant, and the capture disk
It rotates with floating disc, so that the rotation of central oiling agent hole is passed through and is partly overlapped the first lubricant hole, causes relative to each other
The lubricant being contained in the first lubricant hole is moved in central oiling agent hole, and central oiling agent hole rotation pass through and
It is partly overlapped the second lubricant hole, the lubricant being contained in central oiling agent hole is caused to be moved in the second lubricant hole,
It gradually advances via each of described lubricant hole from central area towards neighboring area so as to cause lubricant.
27. the limited-slip differential according to claim 21 or 22, wherein bracket further include:
The side wall extended along first axle has at least one ingate therein, at least one described ingate is extended through
Own centre line, radius at an acute angle cloth of the center line relative to the crosspoint for extending to center line and side wall from first axle
It sets；And
At least one outlet opening, outer edge and spaced away region of at least one the described outlet opening in clutch-adjacent group
Extend between the region of bracket outer,
Wherein, in use, bracket is rotated in a first direction, and causes to push lubricant towards first axle by described at least one
A ingate, and lubricant is caused to pass through at least one described outlet opening and be discharged far from first axle.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2014902327 | 2014-06-18 | ||
| AU2014902327A AU2014902327A0 (en) | 2014-06-18 | A Differential Lock | |
| PCT/AU2015/050341 WO2015192185A1 (en) | 2014-06-18 | 2015-06-18 | Limited slip differential |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107076289A CN107076289A (en) | 2017-08-18 |
| CN107076289B true CN107076289B (en) | 2019-12-03 |
Family
ID=54934578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580043820.1A Active CN107076289B (en) | 2014-06-18 | 2015-06-18 | Limited-slip differential |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US10337598B2 (en) |
| CN (1) | CN107076289B (en) |
| AU (1) | AU2015278251B2 (en) |
| WO (1) | WO2015192185A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736594B (en) * | 2016-05-18 | 2020-06-12 | 重庆隆鑫发动机有限公司 | Splash lubrication clutch |
| USD900874S1 (en) * | 2016-11-17 | 2020-11-03 | Eaton Intelligent Power Limited | Differential case |
| AU201714647S (en) * | 2017-08-07 | 2017-09-22 | Arb Corp Ltd | A mount for a portable device |
| USD941880S1 (en) | 2018-01-19 | 2022-01-25 | Eaton Intelligent Power Limited | Differential case |
| DE102018003829A1 (en) * | 2018-05-11 | 2019-11-14 | Borgwarner Inc. | Friction plate and frictional device working with such a friction plate |
| IT201800009788A1 (en) * | 2018-10-25 | 2020-04-25 | Edi Bondioli | WIDE ANGLE CV JOINT WITH LUBRICANT TANK |
| US11708867B2 (en) * | 2021-01-26 | 2023-07-25 | Borgwarner Inc. | Power transfer component with clutch having components with geometry for increased strength and/or reduced mass |
| CN113819211B (en) * | 2021-09-18 | 2023-07-28 | 北京航空航天大学 | Load-sensitive bidirectional electric push rod mechanism |
| US11920664B2 (en) * | 2022-06-30 | 2024-03-05 | Bombardier Recreational Products Inc. | Limited-slip differential system |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3198295A (en) * | 1963-02-21 | 1965-08-03 | Caterpillar Tractor Co | Friction couple cooling device |
| US3463281A (en) * | 1967-10-24 | 1969-08-26 | Twin Disc Inc | Combination friction clutch and fluid coupling |
| GB1213760A (en) * | 1969-10-09 | 1970-11-25 | Gen Motors Corp | Hydraulic actuators |
| JPS57134068A (en) * | 1981-02-09 | 1982-08-19 | Tokyu Car Corp | Lead preventing piston ring |
| US4667534A (en) * | 1985-10-18 | 1987-05-26 | Tochigi-Fuji Sangyo Kabushiki Kaisha | Limited slip differential gear mechanism |
| DE3826256A1 (en) * | 1987-08-03 | 1989-03-02 | Toyoda Machine Works Ltd | DRIVE TORQUE TRANSMISSION DEVICE |
| US5004089A (en) * | 1988-11-22 | 1991-04-02 | Hitachi Chemical Company, Ltd. | Clutch driven plates and method of producing the same |
| US5827145A (en) * | 1997-03-17 | 1998-10-27 | Asha Corporation | Hydraulic coupling having supplemental actuation |
| DE10015206A1 (en) * | 1999-04-01 | 2000-10-05 | Luk Lamellen & Kupplungsbau | Simple clutch with limited flexibility without springs is for road vehicle, and clutch lining material is linked to clutch disc along flat plane with axial projections forming troughs and peaks |
| JP2003090370A (en) * | 2001-09-20 | 2003-03-28 | Honda Motor Co Ltd | Wet multiple disk clutch and wet friction plate for wet multiple disc brake, etc |
| US6379277B1 (en) * | 2001-10-18 | 2002-04-30 | Ford Global Technologies, Inc. | Limited slip differential mechanism for an automotive vehicle and method for making the same |
| DE602004026237D1 (en) * | 2003-03-19 | 2010-05-12 | Nissan Motor | Differential and housing for differential |
| US7537538B2 (en) * | 2006-05-03 | 2009-05-26 | Gm Global Technology Operations, Inc. | Limited slip differential |
| US8083628B2 (en) | 2009-01-19 | 2011-12-27 | GM Global Technology Operations LLC | Differential carrier assembly for a vehicle |
| US20100304914A1 (en) * | 2009-05-28 | 2010-12-02 | Barrett Mark S | Limited slip differential with positive lube flow to clutch plates |
| JP5345569B2 (en) * | 2010-02-03 | 2013-11-20 | 本田技研工業株式会社 | Vehicle differential |
| JP6044754B2 (en) * | 2012-01-19 | 2016-12-14 | 株式会社ジェイテクト | Clutch plate and manufacturing method thereof |
| CN203239898U (en) * | 2013-01-25 | 2013-10-16 | 优必胜(福建)机械工业有限公司 | Cooling oil hole structure of differential mechanism shell |
| JP5965931B2 (en) * | 2013-02-05 | 2016-08-10 | Ｎｓｋワーナー株式会社 | Wet multi-plate clutch provided with friction plate and friction plate |
-
2015
- 2015-06-18 US US15/319,598 patent/US10337598B2/en active Active
- 2015-06-18 WO PCT/AU2015/050341 patent/WO2015192185A1/en active Application Filing
- 2015-06-18 CN CN201580043820.1A patent/CN107076289B/en active Active
- 2015-06-18 AU AU2015278251A patent/AU2015278251B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107076289A (en) | 2017-08-18 |
| US10337598B2 (en) | 2019-07-02 |
| AU2015278251B2 (en) | 2019-01-31 |
| US20170122423A1 (en) | 2017-05-04 |
| AU2015278251A1 (en) | 2017-01-12 |
| WO2015192185A1 (en) | 2015-12-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107076289B (en) | Limited-slip differential | |
| US9353846B2 (en) | Power transmitting component with torque transfer device configured with fluid evacuation and lubrication system | |
| US4142615A (en) | Wheel drive assembly | |
| US10508693B2 (en) | Clutch assembly with fluid evacuation | |
| DE19800329B4 (en) | Power transmission system for a vehicle | |
| US9163715B2 (en) | Clutched power transmitting device with filter element | |
| US2775141A (en) | Differential | |
| US9593762B2 (en) | Drive axle with pump managed oil flow | |
| US3361008A (en) | Hydraulically restricted differential | |
| DE102011078132A1 (en) | Hub arrangement, in particular for twin wheels | |
| CN104006139B (en) | A kind of electronic limited slip differential device | |
| KR100969367B1 (en) | Differential gear set | |
| US6354979B1 (en) | Limited-slip differential | |
| JPH0447186B2 (en) | ||
| WO2019169223A1 (en) | Lubricant regulating system and an axle assembly made therewith | |
| CN108700183B (en) | Disconnected axle assembly | |
| DE102016100141B4 (en) | Power transmission device with coupling and with filter element | |
| JP2006242377A (en) | Differential apparatus | |
| JPH01250671A (en) | Lubricating device for differential limitting device | |
| JP2020076433A (en) | Power transmission device | |
| DE102006004857B4 (en) | differential | |
| CN100575126C (en) | The anchor fitting of all-terrain vehicle rear wheel axle | |
| JPS61282647A (en) | Differential gear with differential limiting clutch | |
| US20190170234A1 (en) | Electronic limited slip coupling having bolt on configuration | |
| JP2022080323A (en) | Viscous coupling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| REG | Reference to a national code |
Ref country code: HK Ref legal event code: DE Ref document number: 1239781 Country of ref document: HK |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| REG | Reference to a national code |
Ref country code: HK Ref legal event code: WD Ref document number: 1239781 Country of ref document: HK |